Cannot know which container is focused

[Akihiro Motoki]

In "Containers" panel, we cannot distinguish which container is focused.
Previously focused container has different background color and we can know a focused folder.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/103785

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/103785
Committed: https://git.openstack.org/cgit/openstack/horizon/commit/?id=b170a07b7c17ab0969da4c91c801c88347ce2c0e
Submitter: Jenkins
Branch: master

commit b170a07b7c17ab0969da4c91c801c88347ce2c0e
Author: Richard Jones <email address hidden>
Date: Tue Jul 1 18:02:53 2014 +1000

    Reinstate highlighting of selected container in Containers view

    The AJAX updating of the containers is the culprit here in a couple of ways.

    Firstly, the AJAX update (the short-circuit in MultiTableView.construct_tables)
    doesn't have the context from the URL which indicates which of the rows should
    be highlighted. This is because the current_item_id is only set on the
    navigation table in the case where the whole browser is being rendered, rather
    than just part of it. Shifting setting that attribute to all cases allows
    lower-level access to the attribute.

    Secondly, the handling of the AJAX update (in DataTable.maybe_preempt)
    doesn't check the row it creates to see whether it should be selected.

    Change-Id: Ibecb761a4bde25c1ea4e33a581dd0586ecc42ea0
    Closes-bug: 1299828